Nitrous and grip
Hitting nitrous torques the chassis back, giving the rear tires immensely more weight under the new acceleration. The end effect is that you will go straight. If you find your tail sliding out or are about to spin out of control, hit your nitrous. You will be surprised at how fast you will get straight again. This is a great trick in combination with Speedbreaker. With the correct timing, there is no corner you cannot take at any speed.
Unlock Porsche Cayman:
Press L, R(3), Right, Left, Right, Down at the "Press Start" screen.
If you are low on cash, just defeat one of the opponents on the black-list. You will get two marks to use on several different things. Do not use them on the Uniques early in the game. Instead, use them on the middle or the left "Random" choices. They should always come out to either be a big cash bonus or the opponent's pink slip.
When you're going to sell a car, always take it to the tune up shop and sell all the parts first. The selling price of the car is the same either way.
Unlock Free upgrades:
Press Up(2), Down(2), Left, Right, Up, Down at the "Press Start" screen.
One Stop Shop Marker
Press Up, Up, Down, Down, Left, Right, Up, Down at the "Press Start" screen. A special marker for the Junkman Engine part will appear in the back room of the One Stop Shop in career mode. This code can only be enabled once per career.
Pay close attention to your tachometer when launching from the start line. Grab a perfect launch to gain a few precious seconds. When the needle turns blue drop the clutch and hold on.
Before you can do anything, you must win the Burger King Challenge. When you win it, you will unlock all unique parts (also called Junkman parts). Get any car and put all the parts except performance. Once you have your car the way you desire, go to the performance shop. Max out your car by pressing X. Then, put the Junkman parts on. Max out your car again. Then put on the Junkman parts again. Your car should be fully upgraded.
Defeat the indicated Blacklist Boss to win the corresponding car.
Aston Martin DB9: Blacklist Boss 7
Audi A3 3.2 Quattro: Blacklist Boss 15
Audi A4 3.2 FSI Quattro: Blacklist Boss 14
Audi TT 3.2 Quattro: Blacklist Boss 15
BMW GTR (Race version): Blacklist Boss 1
Cadillac CTS: Blacklist Boss 12
Corvette C6: Blacklist Boss 5
Corvette C6.R: Complete 100% of the game
Dodge Viper SRT 10: Blacklist Boss 6
Ford GT: Blacklist Boss 4
Lamborghini Gallardo: Blacklist Boss 6
Lamborghini Murcielago: Blacklist Boss 4
Lotus Elise: Blacklist Boss 8
Mazda RX-7: Blacklist Boss 9
Mazda RX-8: Blacklist Boss 12
Mercedes-Benz CLK 500: Blacklist Boss 8
Mercedes-Benz SL 500: Blacklist Boss 11
Mercedes-Benz SLR McLaren: Blacklist Boss 3
Mitsubishi Eclipse: Blacklist Boss 14
Mitsubishi Lancer Evolution VIII: Blacklist Boss 11
Mustang GT: Blacklist Boss 12
Pontiac GTO: Blacklist Boss 10
Porsche 911 Carrera S: Blacklist Boss 7
Porsche 911 Turbo S: Blacklist Boss 5
Porsche Carrera GT: Blacklist Boss 3
Porsche Cayman S: Blacklist Boss 10
Renault Clio V6: Blacklist Boss 13
Subaru Impreza WRX STi: Blacklist Boss 9
Toyota Supra: Blacklist Boss 13
Vauxhall Monaro VXR: Blacklist Boss 10
Xbox Live gamer points
Complete the following achievements in single player career mode to unlock the indicated number of Xbox Live Gamerscore points:
Defeat Clarence Callahan "Razor" (350 points):
Defeat Blacklist Boss 1
Defeat Eugene James "Earl" (25 points):
Defeat Blacklist Boss 9
Defeat Hector Domingo "Ming" (25 points):
Defeat Blacklist Boss 6
Defeat Ho Seun "Sonny" (10 points):
Defeat Blacklist Boss 15
Defeat Isabel Diaz "Izzy" (10 points):
Defeat Blacklist Boss 12
Defeat Jade Barrett "Jewels" (25 points):
Defeat Blacklist Boss 8
Defeat Joe Vega "JV" (85 points):
Defeat Blacklist Boss 4
Defeat Karl Smit "Baron" (25 points):
Defeat Blacklist Boss 10
Defeat Kira "Kaze" Nakazato (25 points):
Defeat Blacklist Boss 7
Defeat Lou Park "Big Lou" (25 points):
Defeat Blacklist Boss 11
Defeat Ronald McCrea "Ronnie" (100 points):
Defeat Blacklist Boss 3
Defeat Toru Sato "Bull" (200 points):
Defeat Blacklist Boss 2
Defeat Victor Vasquez "Vic" (10 points):
Defeat Blacklist Boss 13
Defeat Vince Kilic "Taz" (10 points):
Defeat Blacklist Boss 14
Defeat Wes Allen "Webster" (75 points):
Defeat Blacklist Boss 5
Recommended car tuning:
If you are performance tuning your car, try to raise "Top Speed", "Acceleration", and "Handling" at the same time, and keep them even as much as possible.
Unlock Castrol Ford GT:
Press Up, Down, Up, Down, Left, Right, Left, Right at the "Press Start" screen.
To an extra $10,000 in career mode have a Need For Speed Underground career game saved on your hard drive. After the prologue you will get $10,000.
Unlock Castrol Syntec Ford GT
Press Left, Right, Left, Right, Up, Down, Up, Down at the "Press Start" screen.
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